<!DOCTYPE HTML>
<html lang="zh-CN">


<head>
    <meta charset="utf-8">
    <meta name="keywords" content="DAO开发模式, Hzw~">
    <meta name="description" content="Jsp+Struts2+JavaBean+DAO开发模式">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
    <meta name="renderer" content="webkit|ie-stand|ie-comp">
    <meta name="mobile-web-app-capable" content="yes">
    <meta name="format-detection" content="telephone=no">
    <meta name="apple-mobile-web-app-capable" content="yes">
    <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent">
    <title>DAO开发模式 | Hzw~</title>
    <link rel="icon" type="image/png" href="https://cdn.jsdelivr.net/gh/1471748102/cdn@1.1/favicon.png">

    <link rel="stylesheet" type="text/css" href="https://cdn.jsdelivr.net/gh/1471748102/cdn@1.7/libs/awesome/css/all.css">
    <link rel="stylesheet" type="text/css" href="https://cdn.jsdelivr.net/gh/1471748102/cdn@1.7/libs/materialize/materialize.min.css">
    <link rel="stylesheet" type="text/css" href="https://cdn.jsdelivr.net/gh/1471748102/cdn@1.7/libs/aos/aos.css">
    <link rel="stylesheet" type="text/css" href="https://cdn.jsdelivr.net/gh/1471748102/cdn@1.7/libs/animate/animate.min.css">
    <link rel="stylesheet" type="text/css" href="https://cdn.jsdelivr.net/gh/1471748102/cdn@1.7/libs/lightGallery/css/lightgallery.min.css">
    <link rel="stylesheet" type="text/css" href="/css/matery.css">
    <link rel="stylesheet" type="text/css" href="/css/my.css">
    
    <script src="https://cdn.jsdelivr.net/gh/1471748102/cdn@1.7/libs/jquery/jquery.min.js"></script>
    
<meta name="generator" content="Hexo 4.2.0"><link rel="stylesheet" href="/css/prism-tomorrow.css" type="text/css"></head>


<body>
    <header class="navbar-fixed">
    <nav id="headNav" class="bg-color nav-transparent">
        <div id="navContainer" class="nav-wrapper head-container">
            <div class="brand-logo">
                <a href="/" class="waves-effect waves-light">
				<div>
                    
                    <img src="https://cdn.jsdelivr.net/gh/1471748102/cdn@1.1/logo.png" class="logo-img" alt="LOGO">
                    
                    <span class="logo-span">Hzw~</span>
					</div>
                </a>
            </div>
            

<a href="#" data-target="mobile-nav" class="sidenav-trigger button-collapse"><i class="fas fa-bars"></i></a>
<ul class="right nav-menu">
  
  <li class="hide-on-med-and-down nav-item">
    
    <a href="/" class="waves-effect waves-light">
      
      <i class="fas fa-home" style="zoom: 0.6;"></i>
      
      <span>主页</span>
    </a>
    
  </li>
  
  <li class="hide-on-med-and-down nav-item">
    
    <a href="/tags" class="waves-effect waves-light">
      
      <i class="fas fa-tags" style="zoom: 0.6;"></i>
      
      <span>标签</span>
    </a>
    
  </li>
  
  <li class="hide-on-med-and-down nav-item">
    
    <a href="/categories" class="waves-effect waves-light">
      
      <i class="fas fa-bookmark" style="zoom: 0.6;"></i>
      
      <span>分类</span>
    </a>
    
  </li>
  
  <li class="hide-on-med-and-down nav-item">
    
    <a href="/archives" class="waves-effect waves-light">
      
      <i class="fas fa-archive" style="zoom: 0.6;"></i>
      
      <span>归档</span>
    </a>
    
  </li>
  
  <li class="hide-on-med-and-down nav-item">
    
    <a href="/about" class="waves-effect waves-light">
      
      <i class="fas fa-user-circle" style="zoom: 0.6;"></i>
      
      <span>关于</span>
    </a>
    
  </li>
  
  <li class="hide-on-med-and-down nav-item">
    
    <a href="/friends" class="waves-effect waves-light">
      
      <i class="fas fa-address-book" style="zoom: 0.6;"></i>
      
      <span>友情链接</span>
    </a>
    
  </li>
  
  <li>
    <a href="#searchModal" class="modal-trigger waves-effect waves-light">
      <i id="searchIcon" class="fas fa-search" title="搜索" style="zoom: 0.85;"></i>
    </a>
  </li>
</ul>

<div id="mobile-nav" class="side-nav sidenav">

    <div class="mobile-head bg-color">
        
        <img src="https://cdn.jsdelivr.net/gh/1471748102/cdn@1.1/logo.png" class="logo-img circle responsive-img">
        
        <div class="logo-name">Hzw~</div>
        <div class="logo-desc">
            
            站在巨人的的肩膀上
            
        </div>
    </div>

    

    <ul class="menu-list mobile-menu-list">
        
        <li class="m-nav-item">
	  
		<a href="/" class="waves-effect waves-light">
			
			    <i class="fa-fw fas fa-home"></i>
			
			主页
		</a>
          
        </li>
        
        <li class="m-nav-item">
	  
		<a href="/tags" class="waves-effect waves-light">
			
			    <i class="fa-fw fas fa-tags"></i>
			
			标签
		</a>
          
        </li>
        
        <li class="m-nav-item">
	  
		<a href="/categories" class="waves-effect waves-light">
			
			    <i class="fa-fw fas fa-bookmark"></i>
			
			分类
		</a>
          
        </li>
        
        <li class="m-nav-item">
	  
		<a href="/archives" class="waves-effect waves-light">
			
			    <i class="fa-fw fas fa-archive"></i>
			
			归档
		</a>
          
        </li>
        
        <li class="m-nav-item">
	  
		<a href="/about" class="waves-effect waves-light">
			
			    <i class="fa-fw fas fa-user-circle"></i>
			
			关于
		</a>
          
        </li>
        
        <li class="m-nav-item">
	  
		<a href="/friends" class="waves-effect waves-light">
			
			    <i class="fa-fw fas fa-address-book"></i>
			
			友情链接
		</a>
          
        </li>
        
        
    </ul>
</div>

        </div>

        
    </nav>

</header>

    



<div class="bg-cover pd-header post-cover" style="background-image: url('https://cdn.jsdelivr.net/gh/1471748102/cdn@1.7.3/wallpaper/34.jpg')">
    <div class="container" style="right: 0px;left: 0px;">
        <div class="row">
            <div class="col s12 m12 l12">
                <div class="brand">
                    <h1 class="description center-align post-title">DAO开发模式</h1>
                </div>
            </div>
        </div>
    </div>
</div>




<main class="post-container content">

    
    <link rel="stylesheet" href="https://cdn.jsdelivr.net/gh/1471748102/cdn@1.7/libs/tocbot/tocbot.css">
<style>
    #articleContent h1::before,
    #articleContent h2::before,
    #articleContent h3::before,
    #articleContent h4::before,
    #articleContent h5::before,
    #articleContent h6::before {
        display: block;
        content: " ";
        height: 100px;
        margin-top: -100px;
        visibility: hidden;
    }

    #articleContent :focus {
        outline: none;
    }

    .toc-fixed {
        position: fixed;
        top: 64px;
    }

    .toc-widget {
        width: 345px;
        padding-left: 20px;
    }

    .toc-widget .toc-title {
        margin: 35px 0 15px 0;
        padding-left: 17px;
        font-size: 1.5rem;
        font-weight: bold;
        line-height: 1.5rem;
    }

    .toc-widget ol {
        padding: 0;
        list-style: none;
    }

    #toc-content {
        height: calc(100vh - 250px);
        overflow: auto;
    }

    #toc-content ol {
        padding-left: 10px;
    }

    #toc-content ol li {
        padding-left: 10px;
    }

    #toc-content .toc-link:hover {
        color: #42b983;
        font-weight: 700;
        text-decoration: underline;
    }

    #toc-content .toc-link::before {
        background-color: transparent;
        max-height: 25px;
    }

    #toc-content .is-active-link {
        color: #42b983;
    }

    #toc-content .is-active-link::before {
        background-color: #42b983;
    }

    #floating-toc-btn {
        position: fixed;
        right: 15px;
        bottom: 76px;
        padding-top: 15px;
        margin-bottom: 0;
        z-index: 998;
    }

    #floating-toc-btn .btn-floating {
        width: 48px;
        height: 48px;
    }

    #floating-toc-btn .btn-floating i {
        line-height: 48px;
        font-size: 1.4rem;
    }
</style>
<div class="row">
    <div id="main-content" class="col s12 m12 l9">
        <!-- 文章内容详情 -->
<div id="artDetail">
    <div class="card">
        <div class="card-content article-info">
            <div class="row tag-cate">
                <div class="col s7">
                    
                    <div class="article-tag">
                        
                            <a href="/tags/DAO/">
                                <span class="chip bg-color">DAO</span>
                            </a>
                        
                    </div>
                    
                </div>
                <div class="col s5 right-align">
                    
                    <div class="post-cate">
                        <i class="fas fa-bookmark fa-fw icon-category"></i>
                        
                            <a href="/categories/Java/" class="post-category">
                                Java
                            </a>
                        
                    </div>
                    
                </div>
            </div>

            <div class="post-info">
                
                <div class="post-date info-break-policy">
                    <i class="far fa-calendar-minus fa-fw"></i>发布日期:&nbsp;&nbsp;
                    2020-01-12
                </div>
                

                

                
                <div class="info-break-policy">
                    <i class="far fa-file-word fa-fw"></i>文章字数:&nbsp;&nbsp;
                    889
                </div>
                

                

                
            </div>

        </div>
        <hr class="clearfix">
        <div class="card-content article-card-content">
            <div id="articleContent">
                <h2 id="前言"><a href="#前言" class="headerlink" title="前言"></a>前言</h2><p>DAO模式就实现了把数据库表的操作转化对Java类的操作，从而提高程序的可读性，并实现更改数据库的方便性。其架构图如下图</p>


<h2 id="代码："><a href="#代码：" class="headerlink" title="代码："></a><strong>代码：</strong></h2><p><strong>jsp提交界面</strong></p>
<pre class=" language-html"><code class="language-html">&lt;%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>html</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>head</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>title</span><span class="token punctuation">></span></span>添加信息提交页面<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>title</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>style</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>text/css<span class="token punctuation">"</span></span><span class="token punctuation">></span></span><span class="token style language-css">
<span class="token selector">body</span><span class="token punctuation">{</span>  
     <span class="token property">background-image</span><span class="token punctuation">:</span><span class="token url">url(src.img/6.jpg)</span><span class="token punctuation">;</span> <span class="token comment" spellcheck="true">/*图片地址*/</span>                             
     <span class="token property">background-origin</span><span class="token punctuation">:</span>content<span class="token punctuation">;</span>   <span class="token comment" spellcheck="true">/*从content区域开始显示背景*/</span>  
     <span class="token property">background-position</span><span class="token punctuation">:</span><span class="token number">50%</span> <span class="token number">5%</span><span class="token punctuation">;</span> <span class="token comment" spellcheck="true">/*             图片上下左右居中  */</span>
     <span class="token property">background-size</span><span class="token punctuation">:</span>cover<span class="token punctuation">;</span>       <span class="token comment" spellcheck="true">/*           保持图像本身的宽高比例，将图片缩放到宽度或高度正好适应定义背景的区域  */</span>
     <span class="token property">background-repeat</span><span class="token punctuation">:</span>no-repeat<span class="token punctuation">;</span>     <span class="token comment" spellcheck="true">/*         图像不重复显示  */</span>
<span class="token punctuation">}</span>
    <span class="token selector">td</span><span class="token punctuation">{</span><span class="token property">font-size</span><span class="token punctuation">:</span> <span class="token number">12</span>px<span class="token punctuation">;</span><span class="token punctuation">}</span>
    <span class="token selector">h2</span><span class="token punctuation">{</span><span class="token property">margin</span><span class="token punctuation">:</span> <span class="token number">0</span>px<span class="token punctuation">}</span>
    <span class="token selector">table </span><span class="token punctuation">{</span>
    <span class="token property">background-color</span><span class="token punctuation">:</span> <span class="token function">rgba</span><span class="token punctuation">(</span><span class="token number">255</span>, <span class="token number">255</span>, <span class="token number">255</span>, <span class="token number">0.9</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token property">margin-top</span><span class="token punctuation">:</span><span class="token number">200</span>px<span class="token punctuation">;</span>
    <span class="token property">margin-left</span><span class="token punctuation">:</span> center<span class="token punctuation">;</span>
    <span class="token property">height</span><span class="token punctuation">:</span> <span class="token number">50</span>px<span class="token punctuation">;</span>
    <span class="token property">width</span><span class="token punctuation">:</span> <span class="token number">300</span>px<span class="token punctuation">;</span>
    <span class="token property">border-radius</span><span class="token punctuation">:</span> <span class="token number">6</span>px<span class="token punctuation">;</span>
<span class="token punctuation">}</span>
    <span class="token selector">td.</span><span class="token punctuation">{</span>
    <span class="token property">text-align</span><span class="token punctuation">:</span> center<span class="token punctuation">;</span>
    <span class="token property">align</span><span class="token punctuation">:</span> center<span class="token punctuation">;</span>
    <span class="token property">font-family</span><span class="token punctuation">:</span> 微软雅黑<span class="token punctuation">;</span>
    <span class="token property">font-size</span><span class="token punctuation">:</span> <span class="token number">20</span>px<span class="token punctuation">;</span>
<span class="token punctuation">}</span>
    <span class="token selector">input<span class="token class">.submit</span> </span><span class="token punctuation">{</span>
    <span class="token property">align</span><span class="token punctuation">:</span>center<span class="token punctuation">;</span>
    <span class="token property">background</span><span class="token punctuation">:</span><span class="token hexcode">#0080ff</span><span class="token punctuation">;</span>
    <span class="token property">width</span><span class="token punctuation">:</span> <span class="token number">100</span>px<span class="token punctuation">;</span> 
    <span class="token property">font-size</span><span class="token punctuation">:</span> <span class="token number">25</span>px<span class="token punctuation">;</span> 
    <span class="token property">font-family</span><span class="token punctuation">:</span>微软雅黑<span class="token punctuation">;</span>
    <span class="token property">color</span><span class="token punctuation">:</span> <span class="token hexcode">#ffffff</span><span class="token punctuation">;</span>
    <span class="token property">border</span><span class="token punctuation">:</span><span class="token number">1</span>px<span class="token punctuation">;</span>
    <span class="token property">border-radius</span><span class="token punctuation">:</span> <span class="token number">6</span>px<span class="token punctuation">;</span>
<span class="token punctuation">}</span>
</span><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>style</span><span class="token punctuation">></span></span> 
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>head</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>body</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>form</span> <span class="token attr-name">action</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>jsreg<span class="token punctuation">"</span></span> <span class="token attr-name">method</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>post<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>table</span> <span class="token attr-name">border</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>0<span class="token punctuation">"</span></span> <span class="token attr-name">width</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>238<span class="token punctuation">"</span></span> <span class="token attr-name">height</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>252<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>tr</span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>td</span><span class="token punctuation">></span></span>教师<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>td</span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>td</span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>input</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>text<span class="token punctuation">"</span></span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>username<span class="token punctuation">"</span></span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>td</span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>tr</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>tr</span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>td</span><span class="token punctuation">></span></span>密码<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>td</span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>td</span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>input</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>text<span class="token punctuation">"</span></span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>ps<span class="token punctuation">"</span></span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>td</span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>tr</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>tr</span> <span class="token attr-name">align</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>center<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>td</span> <span class="token attr-name">colspan</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>2<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>input</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>submit<span class="token punctuation">"</span></span> <span class="token attr-name">value</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>登录<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>td</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>td</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>a</span> <span class="token attr-name">href</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>updateteacher.jsp<span class="token punctuation">"</span></span> <span class="token punctuation">></span></span>忘记密码？<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>a</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>td</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>tr</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>table</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>form</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>body</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>html</span><span class="token punctuation">></span></span></code></pre>
<p><strong>Struts.xml的配置</strong></p>
<pre class=" language-xml"><code class="language-xml"> <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>action</span><span class="token punctuation">></span></span>
            <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>action</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>jsreg<span class="token punctuation">"</span></span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>Action.ther<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
            <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>result</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>success<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>/index_student_left.jsp<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>result</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>action</span><span class="token punctuation">></span></span></code></pre>
<p><strong>JavaBean</strong></p>
<pre class=" language-java"><code class="language-java"><span class="token keyword">public</span> <span class="token keyword">class</span> <span class="token class-name">Teacher</span> <span class="token punctuation">{</span>
    <span class="token keyword">private</span> String username<span class="token punctuation">;</span>
    <span class="token keyword">private</span> String ps<span class="token punctuation">;</span>
    <span class="token keyword">public</span> String <span class="token function">getUsername</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
        <span class="token keyword">return</span> username<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
    <span class="token keyword">public</span> <span class="token keyword">void</span> <span class="token function">setUsername</span><span class="token punctuation">(</span>String username<span class="token punctuation">)</span> <span class="token punctuation">{</span>
        <span class="token keyword">this</span><span class="token punctuation">.</span>username <span class="token operator">=</span> username<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
    <span class="token keyword">public</span> String <span class="token function">getPs</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
        <span class="token keyword">return</span> ps<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
    <span class="token keyword">public</span> <span class="token keyword">void</span> <span class="token function">setPs</span><span class="token punctuation">(</span>String ps<span class="token punctuation">)</span> <span class="token punctuation">{</span>
        <span class="token keyword">this</span><span class="token punctuation">.</span>ps <span class="token operator">=</span> ps<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
<span class="token punctuation">}</span></code></pre>
<p><strong>接口类型</strong></p>
<pre class=" language-java"><code class="language-java"><span class="token keyword">public</span> <span class="token keyword">class</span> <span class="token class-name">Teacher</span> <span class="token punctuation">{</span>
    <span class="token keyword">private</span> String username<span class="token punctuation">;</span>
    <span class="token keyword">private</span> String ps<span class="token punctuation">;</span>
    <span class="token keyword">public</span> String <span class="token function">getUsername</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
        <span class="token keyword">return</span> username<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
    <span class="token keyword">public</span> <span class="token keyword">void</span> <span class="token function">setUsername</span><span class="token punctuation">(</span>String username<span class="token punctuation">)</span> <span class="token punctuation">{</span>
        <span class="token keyword">this</span><span class="token punctuation">.</span>username <span class="token operator">=</span> username<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
    <span class="token keyword">public</span> String <span class="token function">getPs</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
        <span class="token keyword">return</span> ps<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
    <span class="token keyword">public</span> <span class="token keyword">void</span> <span class="token function">setPs</span><span class="token punctuation">(</span>String ps<span class="token punctuation">)</span> <span class="token punctuation">{</span>
        <span class="token keyword">this</span><span class="token punctuation">.</span>ps <span class="token operator">=</span> ps<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
<span class="token punctuation">}</span></code></pre>
<p><strong>DAO</strong></p>
<pre class=" language-java"><code class="language-java"><span class="token keyword">package</span> dao<span class="token punctuation">;</span>

<span class="token keyword">import</span> java<span class="token punctuation">.</span>sql<span class="token punctuation">.</span>*<span class="token punctuation">;</span>
<span class="token keyword">import</span> db<span class="token punctuation">.</span>DbConnect<span class="token punctuation">;</span>
<span class="token keyword">import</span> domain<span class="token punctuation">.</span>Teacher<span class="token punctuation">;</span>

<span class="token keyword">public</span>  <span class="token keyword">class</span> <span class="token class-name">TeacherDAO</span> <span class="token keyword">implements</span> <span class="token class-name">Iteacher</span><span class="token punctuation">{</span>
    <span class="token keyword">protected</span> <span class="token keyword">static</span> <span class="token keyword">final</span> String FIELDS_INSERT<span class="token operator">=</span><span class="token string">"username,ps"</span><span class="token punctuation">;</span>
    <span class="token keyword">protected</span> <span class="token keyword">static</span> String SELECT_SQL<span class="token operator">=</span><span class="token string">"select "</span><span class="token operator">+</span>FIELDS_INSERT<span class="token operator">+</span><span class="token string">" from Teacher where username=?"</span><span class="token punctuation">;</span>
    <span class="token keyword">protected</span> <span class="token keyword">static</span> String UPDATE_SQL<span class="token operator">=</span><span class="token string">"update Teacher set "</span><span class="token operator">+</span><span class="token string">"username=?,ps=? where username=?"</span><span class="token punctuation">;</span>
    <span class="token keyword">public</span> Teacher <span class="token function">find</span><span class="token punctuation">(</span>Teacher te<span class="token punctuation">)</span> <span class="token keyword">throws</span> Exception <span class="token punctuation">{</span>
        Connection con<span class="token operator">=</span>null<span class="token punctuation">;</span>
        PreparedStatement prepStmt<span class="token operator">=</span>null<span class="token punctuation">;</span>
        ResultSet rs<span class="token operator">=</span>null<span class="token punctuation">;</span>
        Teacher te2<span class="token operator">=</span>null<span class="token punctuation">;</span>
        <span class="token keyword">try</span><span class="token punctuation">{</span>
            con<span class="token operator">=</span>DbConnect<span class="token punctuation">.</span><span class="token function">getDBconnection</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
            prepStmt<span class="token operator">=</span>con<span class="token punctuation">.</span><span class="token function">prepareStatement</span><span class="token punctuation">(</span>SELECT_SQL<span class="token punctuation">)</span><span class="token punctuation">;</span>
            prepStmt<span class="token punctuation">.</span><span class="token function">setString</span><span class="token punctuation">(</span><span class="token number">1</span><span class="token punctuation">,</span> te<span class="token punctuation">.</span><span class="token function">getUsername</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
            rs<span class="token operator">=</span>prepStmt<span class="token punctuation">.</span><span class="token function">executeQuery</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
            <span class="token keyword">if</span><span class="token punctuation">(</span>rs<span class="token punctuation">.</span><span class="token function">next</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
                te2<span class="token operator">=</span><span class="token keyword">new</span> <span class="token class-name">Teacher</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
                te2<span class="token punctuation">.</span><span class="token function">setUsername</span><span class="token punctuation">(</span>rs<span class="token punctuation">.</span><span class="token function">getString</span><span class="token punctuation">(</span><span class="token number">1</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
                te2<span class="token punctuation">.</span><span class="token function">setPs</span><span class="token punctuation">(</span>rs<span class="token punctuation">.</span><span class="token function">getString</span><span class="token punctuation">(</span><span class="token number">2</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
            <span class="token punctuation">}</span>
        <span class="token punctuation">}</span><span class="token keyword">catch</span><span class="token punctuation">(</span>Exception e<span class="token punctuation">)</span><span class="token punctuation">{</span>
        <span class="token punctuation">}</span><span class="token keyword">finally</span><span class="token punctuation">{</span>
            DbConnect<span class="token punctuation">.</span><span class="token function">closeDB</span><span class="token punctuation">(</span>con<span class="token punctuation">,</span> prepStmt<span class="token punctuation">,</span> rs<span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token punctuation">}</span>
        <span class="token keyword">return</span> te2<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>v</code></pre>
<p><strong>连接数据库</strong></p>
<pre class=" language-java"><code class="language-java"><span class="token keyword">package</span> db<span class="token punctuation">;</span>

<span class="token keyword">import</span> java<span class="token punctuation">.</span>sql<span class="token punctuation">.</span>Connection<span class="token punctuation">;</span>
<span class="token keyword">import</span> java<span class="token punctuation">.</span>sql<span class="token punctuation">.</span>DriverManager<span class="token punctuation">;</span>
<span class="token keyword">import</span> java<span class="token punctuation">.</span>sql<span class="token punctuation">.</span>PreparedStatement<span class="token punctuation">;</span>
<span class="token keyword">import</span> java<span class="token punctuation">.</span>sql<span class="token punctuation">.</span>ResultSet<span class="token punctuation">;</span>
<span class="token keyword">import</span> java<span class="token punctuation">.</span>sql<span class="token punctuation">.</span>SQLException<span class="token punctuation">;</span>

<span class="token keyword">public</span> <span class="token keyword">class</span> <span class="token class-name">DbConnect</span> <span class="token punctuation">{</span>
    <span class="token keyword">private</span> <span class="token keyword">static</span> String driverName<span class="token operator">=</span><span class="token string">"com.microsoft.sqlserver.jdbc.SQLServerDriver"</span><span class="token punctuation">;</span>
    <span class="token keyword">private</span> <span class="token keyword">static</span> String userName<span class="token operator">=</span><span class="token string">"sa"</span><span class="token punctuation">;</span>
    <span class="token keyword">private</span> <span class="token keyword">static</span> String userpwd<span class="token operator">=</span><span class="token string">"13481195624q"</span><span class="token punctuation">;</span>
    <span class="token keyword">private</span> <span class="token keyword">static</span> String dbName<span class="token operator">=</span><span class="token string">"Student"</span><span class="token punctuation">;</span>
    <span class="token keyword">public</span>    <span class="token keyword">static</span> Connection <span class="token function">getDBconnection</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    String dbURL<span class="token operator">=</span><span class="token string">"jdbc:sqlserver://localhost:1433;DatabaseName=Student"</span><span class="token punctuation">;</span>
         <span class="token keyword">try</span> <span class="token punctuation">{</span>
              Class<span class="token punctuation">.</span><span class="token function">forName</span><span class="token punctuation">(</span>driverName<span class="token punctuation">)</span><span class="token punctuation">;</span>
              Connection con<span class="token operator">=</span>DriverManager<span class="token punctuation">.</span><span class="token function">getConnection</span><span class="token punctuation">(</span>dbURL<span class="token punctuation">,</span>userName<span class="token punctuation">,</span>userpwd<span class="token punctuation">)</span><span class="token punctuation">;</span>
              <span class="token keyword">return</span> con<span class="token punctuation">;</span>
             <span class="token punctuation">}</span><span class="token keyword">catch</span><span class="token punctuation">(</span>Exception e<span class="token punctuation">)</span> <span class="token punctuation">{</span>
                     e<span class="token punctuation">.</span><span class="token function">printStackTrace</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
             <span class="token punctuation">}</span>
                     <span class="token keyword">return</span> null<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
    <span class="token keyword">public</span> <span class="token keyword">static</span> <span class="token keyword">void</span> <span class="token function">closeDB</span><span class="token punctuation">(</span>Connection con<span class="token punctuation">,</span> PreparedStatement pstm<span class="token punctuation">,</span> ResultSet rs<span class="token punctuation">)</span> <span class="token punctuation">{</span>
        <span class="token keyword">try</span> <span class="token punctuation">{</span>
            <span class="token keyword">if</span><span class="token punctuation">(</span>rs<span class="token operator">!=</span>null<span class="token punctuation">)</span>rs<span class="token punctuation">.</span><span class="token function">close</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
            <span class="token keyword">if</span><span class="token punctuation">(</span>pstm<span class="token operator">!=</span>null<span class="token punctuation">)</span>pstm<span class="token punctuation">.</span><span class="token function">close</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
            <span class="token keyword">if</span><span class="token punctuation">(</span>con<span class="token operator">!=</span>null<span class="token punctuation">)</span>con<span class="token punctuation">.</span><span class="token function">close</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token punctuation">}</span><span class="token keyword">catch</span><span class="token punctuation">(</span>SQLException e<span class="token punctuation">)</span><span class="token punctuation">{</span>
                e<span class="token punctuation">.</span><span class="token function">printStackTrace</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
             <span class="token punctuation">}</span>
        <span class="token punctuation">}</span>
    <span class="token punctuation">}</span></code></pre>
<p><strong>执行Action</strong></p>
<pre class=" language-java"><code class="language-java"><span class="token keyword">package</span> Action<span class="token punctuation">;</span>

<span class="token keyword">import</span> dao<span class="token punctuation">.</span>TeacherDAO<span class="token punctuation">;</span>
<span class="token keyword">import</span> domain<span class="token punctuation">.</span>Teacher<span class="token punctuation">;</span>
<span class="token keyword">import</span> java<span class="token punctuation">.</span>util<span class="token punctuation">.</span>Map<span class="token punctuation">;</span>
<span class="token keyword">import</span> java<span class="token punctuation">.</span>util<span class="token punctuation">.</span>regex<span class="token punctuation">.</span>*<span class="token punctuation">;</span>
<span class="token keyword">import</span> com<span class="token punctuation">.</span>opensymphony<span class="token punctuation">.</span>xwork2<span class="token punctuation">.</span>ActionContext<span class="token punctuation">;</span>
<span class="token keyword">import</span> com<span class="token punctuation">.</span>opensymphony<span class="token punctuation">.</span>xwork2<span class="token punctuation">.</span>ActionSupport<span class="token punctuation">;</span>
<span class="token keyword">import</span> javax<span class="token punctuation">.</span>servlet<span class="token punctuation">.</span>http<span class="token punctuation">.</span>HttpServletRequest<span class="token punctuation">;</span>
<span class="token keyword">import</span> org<span class="token punctuation">.</span>apache<span class="token punctuation">.</span>struts2<span class="token punctuation">.</span>ServletActionContext<span class="token punctuation">;</span>


<span class="token keyword">public</span> <span class="token keyword">class</span> <span class="token class-name">ther</span> <span class="token keyword">extends</span> <span class="token class-name">ActionSupport</span><span class="token punctuation">{</span>
    <span class="token keyword">private</span> HttpServletRequest request<span class="token punctuation">;</span>
    <span class="token keyword">public</span> String <span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token keyword">throws</span> Exception <span class="token punctuation">{</span>
    request<span class="token operator">=</span>ServletActionContext<span class="token punctuation">.</span><span class="token function">getRequest</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    Teacher te<span class="token operator">=</span><span class="token keyword">new</span> <span class="token class-name">Teacher</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    te<span class="token punctuation">.</span><span class="token function">setUsername</span><span class="token punctuation">(</span>request<span class="token punctuation">.</span><span class="token function">getParameter</span><span class="token punctuation">(</span><span class="token string">"username"</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    te<span class="token punctuation">.</span><span class="token function">setPs</span><span class="token punctuation">(</span>request<span class="token punctuation">.</span><span class="token function">getParameter</span><span class="token punctuation">(</span><span class="token string">"ps"</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    TeacherDAO te2<span class="token operator">=</span><span class="token keyword">new</span> <span class="token class-name">TeacherDAO</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token keyword">try</span> <span class="token punctuation">{</span>
        te<span class="token operator">=</span>te2<span class="token punctuation">.</span><span class="token function">find</span><span class="token punctuation">(</span>te<span class="token punctuation">)</span><span class="token punctuation">;</span>
        request<span class="token punctuation">.</span><span class="token function">setAttribute</span><span class="token punctuation">(</span><span class="token string">"teacher"</span><span class="token punctuation">,</span> te<span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span><span class="token class-name">Exception</span> e<span class="token punctuation">)</span> <span class="token punctuation">{</span>
        e<span class="token punctuation">.</span><span class="token function">printStackTrace</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
    <span class="token keyword">return</span> <span class="token string">"success"</span><span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
<span class="token punctuation">}</span></code></pre>
<h2 id="结语"><a href="#结语" class="headerlink" title="结语"></a>结语</h2><p>数据访问和业务逻辑分离，便于数据维护，业务逻辑不需要了解访问细节，这是大三写的一个项目，感觉Jsp以后应该用不到了，前后端耦合太严重了.不太符合现在前后端分离的要求.</p>
<script>
        document.querySelectorAll('.github-emoji')
          .forEach(el => {
            if (!el.dataset.src) { return; }
            const img = document.createElement('img');
            img.style = 'display:none !important;';
            img.src = el.dataset.src;
            img.addEventListener('error', () => {
              img.remove();
              el.style.color = 'inherit';
              el.style.backgroundImage = 'none';
              el.style.background = 'none';
            });
            img.addEventListener('load', () => {
              img.remove();
            });
            document.body.appendChild(img);
          });
      </script>
            </div>
            <hr/>

            

    <div class="reprint" id="reprint-statement">
        
            <div class="reprint__author">
                <span class="reprint-meta" style="font-weight: bold;">
                    <i class="fas fa-user">
                        文章作者:
                    </i>
                </span>
                <span class="reprint-info">
                    <a href="https://huangzhiwu98.top" rel="external nofollow noreferrer">TabEscHzw</a>
                </span>
            </div>
            <div class="reprint__type">
                <span class="reprint-meta" style="font-weight: bold;">
                    <i class="fas fa-link">
                        文章链接:
                    </i>
                </span>
                <span class="reprint-info">
                    <a href="https://huangzhiwu98.top/2020/01/12/dao-kai-fa-mo-shi/">https://huangzhiwu98.top/2020/01/12/dao-kai-fa-mo-shi/</a>
                </span>
            </div>
            <div class="reprint__notice">
                <span class="reprint-meta" style="font-weight: bold;">
                    <i class="fas fa-copyright">
                        版权声明:
                    </i>
                </span>
                <span class="reprint-info">
                    本博客所有文章除特別声明外，均采用
                    <a href="https://creativecommons.org/licenses/by/4.0/deed.zh" rel="external nofollow noreferrer" target="_blank">CC BY 4.0</a>
                    许可协议。转载请注明来源
                    <a href="https://huangzhiwu98.top" target="_blank">TabEscHzw</a>
                    !
                </span>
            </div>
        
    </div>

    <script async defer>
      document.addEventListener("copy", function (e) {
        let toastHTML = '<span>复制成功，请遵循本文的转载规则</span><button class="btn-flat toast-action" onclick="navToReprintStatement()" style="font-size: smaller">查看</a>';
        M.toast({html: toastHTML})
      });

      function navToReprintStatement() {
        $("html, body").animate({scrollTop: $("#reprint-statement").offset().top - 80}, 800);
      }
    </script>



            <div class="tag_share" style="display: block;">
                <div class="post-meta__tag-list" style="display: inline-block;">
                    
                        <div class="article-tag">
                            
                                <a href="/tags/DAO/">
                                    <span class="chip bg-color">DAO</span>
                                </a>
                            
                        </div>
                    
                </div>
                <div class="post_share" style="zoom: 80%; width: fit-content; display: inline-block; float: right; margin: -0.15rem 0;">
                    <link rel="stylesheet" type="text/css" href="/libs/share/css/share.min.css">

<div id="article-share">
    
    
    <div class="social-share" data-sites="twitter,facebook,google,qq,qzone,wechat,douban,linkedin" data-wechat-qrcode-helper="<p>微信扫一扫即可分享！</p>"></div>
    <script src="/libs/share/js/social-share.min.js"></script>
    

    

</div>

                </div>
            </div>
            
                <style>
    #reward {
        margin: 40px 0;
        text-align: center;
    }

    #reward .reward-link {
        font-size: 1.4rem;
        line-height: 38px;
    }

    #reward .btn-floating:hover {
        box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2), 0 5px 15px rgba(0, 0, 0, 0.2);
    }

    #rewardModal {
        width: 320px;
        height: 350px;
    }

    #rewardModal .reward-title {
        margin: 15px auto;
        padding-bottom: 5px;
    }

    #rewardModal .modal-content {
        padding: 10px;
    }

    #rewardModal .close {
        position: absolute;
        right: 15px;
        top: 15px;
        color: rgba(0, 0, 0, 0.5);
        font-size: 1.3rem;
        line-height: 20px;
        cursor: pointer;
    }

    #rewardModal .close:hover {
        color: #ef5350;
        transform: scale(1.3);
        -moz-transform:scale(1.3);
        -webkit-transform:scale(1.3);
        -o-transform:scale(1.3);
    }

    #rewardModal .reward-tabs {
        margin: 0 auto;
        width: 210px;
    }

    .reward-tabs .tabs {
        height: 38px;
        margin: 10px auto;
        padding-left: 0;
    }

    .reward-content ul {
        padding-left: 0 !important;
    }

    .reward-tabs .tabs .tab {
        height: 38px;
        line-height: 38px;
    }

    .reward-tabs .tab a {
        color: #fff;
        background-color: #ccc;
    }

    .reward-tabs .tab a:hover {
        background-color: #ccc;
        color: #fff;
    }

    .reward-tabs .wechat-tab .active {
        color: #fff !important;
        background-color: #22AB38 !important;
    }

    .reward-tabs .alipay-tab .active {
        color: #fff !important;
        background-color: #019FE8 !important;
    }

    .reward-tabs .reward-img {
        width: 210px;
        height: 210px;
    }
</style>

<div id="reward">
    <a href="#rewardModal" class="reward-link modal-trigger btn-floating btn-medium waves-effect waves-light red">赏</a>

    <!-- Modal Structure -->
    <div id="rewardModal" class="modal">
        <div class="modal-content">
            <a class="close modal-close"><i class="fas fa-times"></i></a>
            <h4 class="reward-title">你的赏识是我前进的动力</h4>
            <div class="reward-content">
                <div class="reward-tabs">
                    <ul class="tabs row">
                        <li class="tab col s6 alipay-tab waves-effect waves-light"><a href="#alipay">支付宝</a></li>
                        <li class="tab col s6 wechat-tab waves-effect waves-light"><a href="#wechat">微 信</a></li>
                    </ul>
                    <div id="alipay">
                        <img src="/medias/reward/alipay.jpg" class="reward-img" alt="支付宝打赏二维码">
                    </div>
                    <div id="wechat">
                        <img src="/medias/reward/wechat.png" class="reward-img" alt="微信打赏二维码">
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

<script>
    $(function () {
        $('.tabs').tabs();
    });
</script>
            
        </div>
    </div>

    

    

    

    

    

    

<article id="prenext-posts" class="prev-next articles">
    <div class="row article-row">
        
        <div class="article col s12 m6" data-aos="fade-up">
            <div class="article-badge left-badge text-color">
                <i class="fas fa-chevron-left"></i>&nbsp;上一篇</div>
            <div class="card">
                <a href="/2020/01/12/github-cha-xun-ji-qiao/">
                    <div class="card-image">
                        
                        
                        <img src="https://cdn.jsdelivr.net/gh/1471748102/cdn@1.7.6/wallpaper/67.jpg" class="responsive-img" alt="Github查询技巧">
                        
                        <span class="card-title">Github查询技巧</span>
                    </div>
                </a>
                <div class="card-content article-content">
                    <div class="summary block-with-text">
                        
                            介绍一些Github技巧
                        
                    </div>
                    <div class="publish-info">
                        <span class="publish-date">
                            <i class="far fa-clock fa-fw icon-date"></i>2020-01-12
                        </span>
                        <span class="publish-author">
                            
                            <i class="fas fa-bookmark fa-fw icon-category"></i>
                            
                            <a href="/categories/%E9%9A%8F%E7%AC%94/" class="post-category">
                                    随笔
                                </a>
                            
                            
                        </span>
                    </div>
                </div>
                
                <div class="card-action article-tags">
                    
                    <a href="/tags/github/">
                        <span class="chip bg-color">github</span>
                    </a>
                    
                </div>
                
            </div>
        </div>
        
        
        <div class="article col s12 m6" data-aos="fade-up">
            <div class="article-badge right-badge text-color">
                下一篇&nbsp;<i class="fas fa-chevron-right"></i>
            </div>
            <div class="card">
                <a href="/2020/01/11/git-cao-zuo-san/">
                    <div class="card-image">
                        
                        <img src="https://cdn.jsdelivr.net/gh/1471748102/cdn@1.7.3/wallpaper/yinghua.jpg" class="responsive-img" alt="Git操作(三)">
                        
                        <span class="card-title">Git操作(三)</span>
                    </div>
                </a>
                <div class="card-content article-content">
                    <div class="summary block-with-text">
                        
                            随笔记录git命令，Git分支管理
                        
                    </div>
                    <div class="publish-info">
                            <span class="publish-date">
                                <i class="far fa-clock fa-fw icon-date"></i>2020-01-11
                            </span>
                        <span class="publish-author">
                            
                            <i class="fas fa-bookmark fa-fw icon-category"></i>
                            
                            <a href="/categories/git/" class="post-category">
                                    git
                                </a>
                            
                            
                        </span>
                    </div>
                </div>
                
                <div class="card-action article-tags">
                    
                    <a href="/tags/git/">
                        <span class="chip bg-color">git</span>
                    </a>
                    
                </div>
                
            </div>
        </div>
        
    </div>
</article>

</div>



<!-- 代码块功能依赖 -->
<script type="text/javascript" src="/libs/codeBlock/codeBlockFuction.js"></script>

<!-- 代码语言 -->

<script type="text/javascript" src="/libs/codeBlock/codeLang.js"></script>


<!-- 代码块复制 -->

<script type="text/javascript" src="/libs/codeBlock/codeCopy.js"></script>


<!-- 代码块收缩 -->

<script type="text/javascript" src="/libs/codeBlock/codeShrink.js"></script>


<!-- 代码块折行 -->

<style type="text/css">
code[class*="language-"], pre[class*="language-"] { white-space: pre !important; }
</style>


    </div>
    <div id="toc-aside" class="expanded col l3 hide-on-med-and-down">
        <div class="toc-widget">
            <div class="toc-title"><i class="far fa-list-alt"></i>&nbsp;&nbsp;目录</div>
            <div id="toc-content"></div>
        </div>
    </div>
</div>

<!-- TOC 悬浮按钮. -->

<div id="floating-toc-btn" class="hide-on-med-and-down">
    <a class="btn-floating btn-large bg-color">
        <i class="fas fa-list-ul"></i>
    </a>
</div>


<script src="https://cdn.jsdelivr.net/gh/1471748102/cdn@1.7/libs/tocbot/tocbot.min.js"></script>
<script>
    $(function () {
        tocbot.init({
            tocSelector: '#toc-content',
            contentSelector: '#articleContent',
            headingsOffset: -($(window).height() * 0.4 - 45),
            collapseDepth: Number('10'),
            headingSelector: 'h2, h3, h4'
        });

        // modify the toc link href to support Chinese.
        let i = 0;
        let tocHeading = 'toc-heading-';
        $('#toc-content a').each(function () {
            $(this).attr('href', '#' + tocHeading + (++i));
        });

        // modify the heading title id to support Chinese.
        i = 0;
        $('#articleContent').children('h2, h3, h4').each(function () {
            $(this).attr('id', tocHeading + (++i));
        });

        // Set scroll toc fixed.
        let tocHeight = parseInt($(window).height() * 0.4 - 64);
        let $tocWidget = $('.toc-widget');
        $(window).scroll(function () {
            let scroll = $(window).scrollTop();
            /* add post toc fixed. */
            if (scroll > tocHeight) {
                $tocWidget.addClass('toc-fixed');
            } else {
                $tocWidget.removeClass('toc-fixed');
            }
        });

        
        /* 修复文章卡片 div 的宽度. */
        let fixPostCardWidth = function (srcId, targetId) {
            let srcDiv = $('#' + srcId);
            if (srcDiv.length === 0) {
                return;
            }

            let w = srcDiv.width();
            if (w >= 450) {
                w = w + 21;
            } else if (w >= 350 && w < 450) {
                w = w + 18;
            } else if (w >= 300 && w < 350) {
                w = w + 16;
            } else {
                w = w + 14;
            }
            $('#' + targetId).width(w);
        };

        // 切换TOC目录展开收缩的相关操作.
        const expandedClass = 'expanded';
        let $tocAside = $('#toc-aside');
        let $mainContent = $('#main-content');
        $('#floating-toc-btn .btn-floating').click(function () {
            if ($tocAside.hasClass(expandedClass)) {
                $tocAside.removeClass(expandedClass).hide();
                $mainContent.removeClass('l9');
            } else {
                $tocAside.addClass(expandedClass).show();
                $mainContent.addClass('l9');
            }
            fixPostCardWidth('artDetail', 'prenext-posts');
        });
        
    });
</script>

    

</main>



    <footer class="page-footer bg-color">
    <div class="container row center-align" style="margin-bottom: 0px !important;">
        <div class="col s12 m8 l8 copy-right">
            Copyright&nbsp;&copy;
            <span id="year">2019</span>
            <a href="https://huangzhiwu98.top" target="_blank">TabEsc</a>
            |&nbsp;Bye~&nbsp;<a href="https://cdn.jsdelivr.net/gh/1471748102/cdn@1.7/img/jienihui.jpg" target="_blank">Bye</a>
          
            <br>
            
            &nbsp;<i class="fas fa-chart-area"></i>&nbsp;站点总字数:&nbsp;<span
                class="white-color">47k</span>&nbsp;字
            
            
            
            
            
            
            <span id="busuanzi_container_site_pv">	
                |&nbsp;<i class="far fa-eye"></i>&nbsp;总访问量:&nbsp;<span id="busuanzi_value_site_pv"
                    class="white-color"></span>&nbsp;次
            </span>
            
            
            <span id="busuanzi_container_site_uv">
                |&nbsp;<i class="fas fa-users"></i>&nbsp;总访问人数:&nbsp;<span id="busuanzi_value_site_uv"
                    class="white-color"></span>&nbsp;人
            </span>
            
            <br>
            
            <br>
            
        </div>
        <div class="col s12 m4 l4 social-link social-statis">
    <a href="https://github.com/1471748102" class="tooltipped" target="_blank" data-tooltip="访问我的GitHub" data-position="top" data-delay="50">
        <i class="fab fa-github"></i>
    </a>



    <a href="mailto:1471748102@qq.com" class="tooltipped" target="_blank" data-tooltip="邮件联系我" data-position="top" data-delay="50">
        <i class="fas fa-envelope-open"></i>
    </a>







    <a href="tencent://AddContact/?fromId=50&fromSubId=1&subcmd=all&uin=1471748102" class="tooltipped" target="_blank" data-tooltip="QQ联系我: 1471748102" data-position="top" data-delay="50">
        <i class="fab fa-qq"></i>
    </a>



    <a href="https://cdn.jsdelivr.net/gh/1471748102/cdn@1.7.2/wechat.jpg" class="tooltipped" target="_blank" data-tooltip="微信: https://cdn.jsdelivr.net/gh/1471748102/cdn@1.7.2/wechat.jpg" data-position="top" data-delay="50">
        <i class="fab fa-weixin"></i>
    </a>



    <a href="https://www.zhihu.com/" class="tooltipped" target="_blank" data-tooltip="关注我的知乎: https://www.zhihu.com/" data-position="top" data-delay="50">
        <i class="fab fa-zhihu1">知</i>
    </a>





    <a href="https://raw.githack.com/1471748102/cdn/master/about/about.html" class="tooltipped" target="_blank" data-tooltip="查看我的个人信息: https://raw.githack.com/1471748102/cdn/master/about/about.html" data-position="top" data-delay="50">
        <i class="fab fa-wo1">关于我</i>
    </a>
</div>
    </div>
</footer>

<div class="progress-bar"></div>


    <!-- 搜索遮罩框 -->
<div id="searchModal" class="modal">
    <div class="modal-content">
        <div class="search-header">
            <span class="title"><i class="fas fa-search"></i>&nbsp;&nbsp;搜索</span>
            <input type="search" id="searchInput" name="s" placeholder="请输入搜索的关键字"
                   class="search-input">
        </div>
        <div id="searchResult"></div>
    </div>
</div>

<script src="/js/search.js"></script>
<script type="text/javascript">
$(function () {
    searchFunc("/" + "search.xml", 'searchInput', 'searchResult');
});
</script>
    <!-- 回到顶部按钮 -->
<div id="backTop" class="top-scroll">
    <a class="btn-floating btn-large waves-effect waves-light" href="#!">
        <i class="fas fa-arrow-up"></i>
    </a>
</div>


    <script src="https://cdn.jsdelivr.net/gh/1471748102/cdn@1.7/libs/materialize/materialize.min.js"></script>
    <script src="https://cdn.jsdelivr.net/gh/1471748102/cdn@1.7/libs/masonry/masonry.pkgd.min.js"></script>
    <script src="https://cdn.jsdelivr.net/gh/1471748102/cdn@1.7/libs/aos/aos.js"></script>
    <script src="https://cdn.jsdelivr.net/gh/1471748102/cdn@1.7/libs/scrollprogress/scrollProgress.min.js"></script>
    <script src="https://cdn.jsdelivr.net/gh/1471748102/cdn@1.7/libs/lightGallery/js/lightgallery-all.min.js"></script>
    <script src="/js/matery.js"></script>

    <!-- Global site tag (gtag.js) - Google Analytics -->


    <!-- Baidu Analytics -->

    <!-- Baidu Push -->

<script>
    (function () {
        var bp = document.createElement('script');
        var curProtocol = window.location.protocol.split(':')[0];
        if (curProtocol === 'https') {
            bp.src = 'https://zz.bdstatic.com/linksubmit/push.js';
        } else {
            bp.src = 'http://push.zhanzhang.baidu.com/push.js';
        }
        var s = document.getElementsByTagName("script")[0];
        s.parentNode.insertBefore(bp, s);
    })();
</script>

    
    
    <script async src="https://cdn.jsdelivr.net/gh/1471748102/cdn@1.7/libs/others/busuanzi.pure.mini.js"></script>
    

    

    

    

    

    
    
    
    <script src="https://cdn.jsdelivr.net/gh/1471748102/cdn@1.7/libs/instantpage/instantpage.js" type="module"></script>
    
	
	<canvas class="fireworks" style="position: fixed;left: 0;top: 0;z-index: 1; pointer-events: none;" ></canvas>
	<script type="text/javascript" src="//cdn.bootcss.com/animejs/2.2.0/anime.min.js"></script> 
	<script type="text/javascript" src="/js/fireworks.js"></script>


</body>

</html>
